title: Narcotic antagonists: naltrexone pharmacochemistry and sustained-release preparations.
mesh_terms: D000818:Animals; D002626:Chemistry, Pharmaceutical; D003692:Delayed-Action Preparations; D006801:Humans; D009270:Naloxone / Q000031:analogs & derivatives*; D009271:Naltrexone / Q000008:administration & dosage / Q000378:metabolism / Q000494:pharmacology*; D009292:Narcotic Antagonists / Q000494:pharmacology
chemical_list: D003692:Delayed-Action Preparations; D009292:Narcotic Antagonists; D009270:Naloxone; D009271:Naltrexone